A military killer drone, er ... missile defense took one step closer to reality. Here's a video clip of a "multiple kill vehicle" completing its hover test:

Objectives of the test included having the MKV-L hover under its own power and prove its capability to recognize and track a surrogate target in a flight environment. During the test, the MKV-L's propulsion system demonstrated maneuverability while tracking a target. The MKV-L transmitted video and flight telemetry to the ground.

Have none of you actualyl READ what it does? The thing naviagtes to a spot in the path of ballistic missile and kills it by basically ramming the thing at high speed, in orbit. It does not kill any living thing or have to distinguish between friendlies, as its only purpose is to stop things falling ot earth from orbit.